Home / 11,587.08-15,990.12-6,281.88

Finding the Fourth Proportional to 11,587.08, 15,990.12 and 6,281.88

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Solution

The fourth proportional to 11,587.08, 15,990.12 and 6,281.88 is: 8,668.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,587.08 : 15,990.12 = 6,281.88 : x
  2. Step 2: Convert to fraction form
    11,587.08/15,990.12 = 6,281.88/x
  3. Step 3: Cross multiply
    11,587.08x = 15,990.12 × 6,281.88
  4. Step 4: Simplify right side
    11,587.08x = 100,448,015.03
  5. Step 5: Solve for x
    x = 100,448,015.03/11,587.08
  6. Step 6: Final answer
    x = 8,668.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.